LUCKIEST

LUCKY

golden, favorable, favourable, lucky, prosperous

(adjective) presaging or likely to bring good luck or a good outcome; “a favorable time to ask for a raise”; “lucky stars”; “a prosperous moment to make a decision”

lucky

(adjective) occurring by chance; “a lucky escape”; “a lucky guess”

lucky

(adjective) having or bringing good fortune; “my lucky day”; “a lucky man”

Source: WordNet® 3.1

Adjective

luckiest

superlative form of lucky: most lucky

Source: Wiktionary

LUCKY

Luck"y, a. [Compar. Luckier; superl. Luckiest.]

1. Favored by luck; fortunate; meeting with good success or good fortune; -- said of persons; as, a lucky adventurer. " Lucky wight." Spenser.

2. Producing, or resulting in, good by chance, or unexpectedly; favorable; auspicious; fortunate; as, a lucky mistake; a lucky cast; a lucky hour. We doubt not of a fair and lucky war. Shak.

Syn.

– Successful; fortunate; prosperous; auspicious.

Source: Webster’s Unabridged Dictionary 1913 Edition